21011330322203 has 8 divisors (see below), whose sum is σ = 22629887827008. Its totient is φ = 19393101578304.

The previous prime is 21011330322197. The next prime is 21011330322263. The reversal of 21011330322203 is 30222303311012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21011330322203 - 2²² = 21011326127899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21011330322263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82057475 + ... + 82313132.

It is an arithmetic number, because the mean of its divisors is an integer number (2828735978376).

Almost surely, 2^{21011330322203} is an apocalyptic number.

21011330322203 is a deficient number, since it is larger than the sum of its proper divisors (1618557504805).

21011330322203 is a wasteful number, since it uses less digits than its factorization.

21011330322203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164380453.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21011330322203 its reverse (30222303311012), we get a palindrome (51233633633215).

The spelling of 21011330322203 in words is "twenty-one trillion, eleven billion, three hundred thirty million, three hundred twenty-two thousand, two hundred three".